Face recognition system based on face recognition technology is a new biometric technology and a cutting-edge technology in the international science and technology field. It widely uses regional feature analysis algorithm and combines computer image processing technology with biostatistics principle. It uses computer image processing technology to extract portrait feature points from video, and uses biostatistics principle to analyze and establish mathematical model, which has broad development prospects.

In 2006, the United States has asked countries that have visa-free agreements with it to use the electronic passport system with face recognition function before June 26th 10. By the end of 2006, more than 50 countries had implemented this system. On April 20 12, the railway department announced that the high-tech security system face recognition system for identity recognition would be installed in the security area of the station; It can detect face brightness, automatically adjust dynamic exposure compensation, face tracking detection and automatically adjust image magnification.